African Black Duck vs Southern Pochard
Anas sparsa 比較対象 Netta erythrophthalma
Side-by-Side Comparison
| 属性 | African Black Duck | Southern Pochard |
|---|---|---|
| 学名 | Anas sparsa | Netta erythrophthalma |
| 目 | Anseriformes | Anseriformes |
| 科 | Anatidae | Anatidae |
| 保全状況 | Least Concern | Least Concern |
| 体長 | — | — |
| 翼開長 | 49.5 cm (19.5 in) | 41.6 cm (16.4 in) |
| 体重 | 996.8333333333334 g (35.16 oz) | 820.8 g (28.95 oz) |
| 食性 | -- | -- |
| 一腹卵数 | 4-9 | 5-15 |
| Population Trend | — | — |
Habitat Comparison
African Black Duck
Fast-flowing rocky rivers and streams, mountain gorges, and waterfalls from sea level to 4,000 m across sub-Saharan Africa from Ethiopia and Kenya south to the Cape. Requires clear turbulent water with boulders.
Southern Pochard
Freshwater and brackish lakes, pans, and marshes in sub-Saharan Africa and separately in Colombia, Venezuela, Peru, and Ecuador. Nomadic in Africa; follows seasonal flooding.
Song & Call Comparison
African Black Duck
Produces a harsh, resonant quacking call; alarm is a loud, emphatic quack repeated rapidly. Both sexes call with strong quacking; pairs duet with synchronized calls along African rivers.
Southern Pochard
Male gives a harsh, buzzy churr; female produces a series of resonant quacks. The male's buzzy display call is subdued; the female's loud, emphatic quacking dominates African wetland sounds.
保全状況
African Black Duck
Southern Pochard
How to Tell Them Apart
African Black Duck
Dark blackish-brown plumage with bold white spots on back and scapulars. Iridescent blue-green speculum with white borders. Head dark with pale spots. Bill and legs dark gray. Sexes similar. Fast-flowing …
Southern Pochard
Males deep brown with iridescent black head and red eye; pale blue-gray bill with dark tip. Females brown with pale face and pale crescent behind eye. White wing stripe in …
About These Birds
African Black Duck
アフリカンブラックダックはサハラ以南のアフリカの急流河川に生息する特殊なカモです。暗褐色の羽毛と白い斑点が特徴で、水流の速い清澄な渓流を好みます。繁殖期には縄張り意識が強く、ペアで生活します。急流の水生昆虫や甲殻類を主食とします。
Southern Pochard
サザンポチャードはアフリカ南部と南米に分布する潜水性カモです。雄は暗褐色の体に赤い目が特徴的です。深水の湖、ダム、湿地に生息し、水草の塊茎、藻類、無脊椎動物を潜って採食します。アフリカ南部では比較的普通に見られる種です。